#!/usr/bin/env python
# -*- coding:utf-8 -*-
from __future__ import division
# num = 1
# while num < 11:
#     print(num)
#     num += 1  # num = num + 1
#
#
# num = 100
# while num > 90:
#     print(num)
#     num -= 1  # num = num - 1

# data = "alex是sb"
# if "sb" in data:
#     print("含有这个词")
# else:
#     print("不包含")


v1 = not "武沛齐"
print(v1) # False

v2 = not ""
print(v2) # True

v3 = 0 or 4 and 3 or not 7 or 9 and 6
print(v3)